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Finding the Fourth Proportional to 13,262.72, 18,303 and 7,294.64

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Solution

The fourth proportional to 13,262.72, 18,303 and 7,294.64 is: 10,066.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,262.72 : 18,303 = 7,294.64 : x
  2. Step 2: Convert to fraction form
    13,262.72/18,303 = 7,294.64/x
  3. Step 3: Cross multiply
    13,262.72x = 18,303 × 7,294.64
  4. Step 4: Simplify right side
    13,262.72x = 133,513,795.92
  5. Step 5: Solve for x
    x = 133,513,795.92/13,262.72
  6. Step 6: Final answer
    x = 10,066.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.